Depends on how hungry Phil is. This past week, he'd been kind of "off his feed" getting into his shed cycle, so he hadn't eaten in a couple of weeks. Even though he was then in the middle of actually shedding, he was out prowling as though hungry, so I thawed the rat out and presented it to him. He wasted no time in striking on it and scarfing it down. The first time I'd presented the rat, though, he'd shown no interest in it at all.
He was out prowling again last night, so I think I'll swing by today and get him another rat.